commit 7ca72524cc7c84bad110ad499b42f0585c94bda8
Author: Lukas K <lu@0x83.eu>
Date:   Sat Mar 18 00:37:40 2023 +0100

    imp: add all inner layers to default layer display
    
    and add a test for it
    
    changelog: Bugfixes/Board Editor: properly set visibility of inner
    layers when opening a board for the first time
    
    closes #712
